FR2737350A1 - Electrical contact support - has silicone seal fitted into recess between insulating block and metal casing before filling with epoxy resin - Google Patents

Electrical contact support - has silicone seal fitted into recess between insulating block and metal casing before filling with epoxy resin Download PDF

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Publication number
FR2737350A1
FR2737350A1 FR9509204A FR9509204A FR2737350A1 FR 2737350 A1 FR2737350 A1 FR 2737350A1 FR 9509204 A FR9509204 A FR 9509204A FR 9509204 A FR9509204 A FR 9509204A FR 2737350 A1 FR2737350 A1 FR 2737350A1
Authority
FR
France
Prior art keywords
epoxy resin
block
recess
metal casing
groove
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR9509204A
Other languages
French (fr)
Other versions
FR2737350B1 (en
Inventor
Christian Lmazelle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Connecteurs Cinch SA
Original Assignee
Connecteurs Cinch SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Connecteurs Cinch SA filed Critical Connecteurs Cinch SA
Priority to FR9509204A priority Critical patent/FR2737350B1/en
Publication of FR2737350A1 publication Critical patent/FR2737350A1/en
Application granted granted Critical
Publication of FR2737350B1 publication Critical patent/FR2737350B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521Sealing between contact members and housing, e.g. sealing insert

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The support consists of a metal casing with an inner shoulder and a block (1) of an insulating material with a peripheral projection (14) which rests on the shoulder and forms a recess (17) above it. The insulating block has a series of channels (2) through it for the electrical contacts. The recess (17) between the insulating block and the metal casing contains a silicone seal (22) which is pref. applied in a paste form before the recess is filled with an epoxy resin (23).

Description

Perfectionnements aux supports de contacts
de connecteurs électriques
L'invention se rapporte à des supports de contacts de connecteurs électriques.
Improvements to contact supports
electrical connectors
The invention relates to contact supports for electrical connectors.

L'invention vise des supports de contacts constitués d'un bloc isolant percé d'une série de canaux destinés, chacun, à recevoir un organe de contact, par exemple, des organes de forme générale cylindrique avec, à une extrémité, un élément femelle élastique destiné à recevoir une broche, tandis que l'autre extrémité est terminée par une queue pour recevoir, soudés, des conducteurs électriques. Le bloc est logé dans un corps métallique qui présente un rebord pour sa fixation dans un élément d'un connecteur. The invention relates to contact supports consisting of an insulating block pierced with a series of channels each intended to receive a contact member, for example, generally cylindrical members with, at one end, a female element. elastic intended to receive a pin, while the other end is terminated by a tail to receive, welded, electrical conductors. The block is housed in a metal body which has a flange for fixing it in an element of a connector.

Généralement, le corps métallique présente un épaulement interne contre lequel bute une saillie périphérique du bloc. Generally, the metal body has an internal shoulder against which a peripheral projection of the block abuts.

Afin d'assurer la fixation du bloc dans le corps métallique et également afin que la liaison de ces deux éléments soit étanche, on coule une résine époxy entre ceux-ci. In order to ensure the fixing of the block in the metal body and also so that the connection of these two elements is sealed, an epoxy resin is poured between them.

De tels supports sont souvent utilisés dans des applications dans lesquelles ils sont soumis à des chocs thermiques et mécaniques très importants et, également, à des agressions chimiques. On a constaté que, compte tenu des conditions d'utilisation, l'étanchéité de la liaison entre le bloc et le corps métallique n 'était pas toujours satisfaisante. Such supports are often used in applications in which they are subjected to very significant thermal and mechanical shocks and, also, to chemical attack. It was found that, taking into account the conditions of use, the tightness of the connection between the block and the metal body was not always satisfactory.

L'un des buts de la présente invention est de remédier à cet inconvénient.  One of the aims of the present invention is to remedy this drawback.

Les perfectionnements, selon la présente invention, visent des supports de contacts de connecteurs électriques du type comprenant un corps métallique avec un épaulement interne et un bloc de matière isolante comportant une saillie périphérique, ledit bloc étant logé dans le corps métallique, sa saillie portant, par une face, contre l'épaulement, tandis que l'autre face, du côté opposé à l'épaulement, forme avec la surface interne du corps métallique, une gorge, ledit bloc étant percé d'une série de canaux dans chacun desquels est fixé un organe de contact électrique, une résine époxy étant coulée entre la saillie et la surface interne correspondante du corps métallique et remplissant la gorge, lesdits perfectionnements étant caractérisés en ce qu'un joint est inséré dans le fond de la gorge. The improvements according to the present invention are for contact supports for electrical connectors of the type comprising a metal body with an internal shoulder and a block of insulating material comprising a peripheral projection, said block being housed in the metal body, its projection bearing, by one side, against the shoulder, while the other side, on the side opposite the shoulder, forms with the internal surface of the metal body, a groove, said block being pierced with a series of channels in each of which is fixed an electrical contact member, an epoxy resin being poured between the projection and the corresponding internal surface of the metal body and filling the groove, said improvements being characterized in that a seal is inserted in the bottom of the groove.

Grâce à cette disposition, le joint assure une parfaite étanchéité entre le bloc et le corps métallique même si de très fines fissures peuvent se former dans la résine époxy dans certaines conditions d'utilisation. Thanks to this arrangement, the seal ensures a perfect seal between the block and the metal body even if very fine cracks can form in the epoxy resin under certain conditions of use.

De préférence, le joint est réalisé en silicone et est déposé sous forme pâteuse dans le fond de la gorge avant le remplissage de celle-ci de résine époxy.  Preferably, the seal is made of silicone and is deposited in a pasty form in the bottom of the groove before filling it with epoxy resin.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés, dans lesquels
Figure 1 est une vue en plan d'un support de contacts d'un connecteur électrique, selon l'invention.
The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings, in which
Figure 1 is a plan view of a contact support of an electrical connector according to the invention.

Figure 2 est une vue en coupe suivant la ligne 2-2 de la figure 1. Figure 2 is a sectional view along line 2-2 of Figure 1.

Figure 3 est une vue en coupe suivant la ligne 3-3 de la figure 1. Figure 3 is a sectional view along line 3-3 of Figure 1.

Figure 4 est une vue en coupe à plus grande échelle montrant, en détail, la liaison entre le bloc et le corps métallique. Figure 4 is a sectional view on a larger scale showing, in detail, the connection between the block and the metal body.

Le support représenté aux figures comprend un bloc 1 en matière isolante présentant deux faces parallèles la et lb et comportant une série de canaux 2 recevant, chacun, un organe de contact électrique 3, chaque organe 3 présentant une extrémité femelle cylindrique 4 comportant des parties découpées afin d'enserrer élastiquement une broche d'un élément complémentaire. Chaque organe 3, à son extrémité opposée à l'extrémité femelle, présente un conduit 6 avec une découpe en biseau 7 et terminé par un trou borgne 5. The support shown in the figures comprises a block 1 of insulating material having two parallel faces 1a and 1b and comprising a series of channels 2 each receiving an electrical contact member 3, each member 3 having a cylindrical female end 4 comprising cut parts to resiliently enclose a pin of an additional element. Each member 3, at its end opposite the female end, has a conduit 6 with a bevel cut 7 and terminated by a blind hole 5.

Chaque organe 3 présente un renflement 8 en un point intermédiaire de sa longueur et qui bute contre un ressaut 9 de la surface interne des canaux 2. Each member 3 has a bulge 8 at an intermediate point of its length and which abuts against a projection 9 of the internal surface of the channels 2.

Les organes 3 sont fixés dans les canaux 2 par une résine époxy coulée entre le renflement 8 et la surface la du bloc.  The members 3 are fixed in the channels 2 by an epoxy resin poured between the bulge 8 and the surface la of the block.

Le bloc 1 est logé dans un corps métallique 10 qui comporte latéralement un rebord 11 destiné à faciliter sa fixation dans un élément de boîtier d'un connecteur électrique. The block 1 is housed in a metal body 10 which laterally has a flange 11 intended to facilitate its fixing in a housing element of an electrical connector.

Le corps métallique 10 comporte un épaulement interne 12 avec lequel vient coopérer une face d'une saillie périphérique 14 du bloc 1. The metal body 10 has an internal shoulder 12 with which one face of a peripheral projection 14 of the block 1 cooperates.

Du côté de la face la du bloc 1, la saillie 14 forme un décrochement 16 de sorte qu'avec la surface interne du corps métallique 10, il est ménagé une gorge 17. On the side of the face 1a of the block 1, the projection 14 forms a recess 16 so that with the internal surface of the metal body 10, a groove 17 is formed.

Sur une partie, au moins, de la surface interne du corps métallique 10, il est pratiqué une rainure 18. On at least part of the internal surface of the metallic body 10, there is a groove 18.

Pour assurer la fixation étanche du bloc 1 dans le corps métallique 10, on ccule une résine époxy 20 qui vient remplir la rainure 18 et l'espace situé entre la saillie 14 et la surface interne du corps métallique, puis on réalise dans la gorge 17 un joint 22 en silicone qui s 'étend depuis le décrochement 16 jusqu'à la surface interne du corps métallique 10. Ce joint est réalisé en déposant un silicone sous une forme pâteuse qui reste, dans le temps, élastique. To ensure the watertight fixing of the block 1 in the metal body 10, an epoxy resin 20 is emptied which fills the groove 18 and the space between the projection 14 and the internal surface of the metal body, then it is produced in the groove 17 a silicone seal 22 which extends from the recess 16 to the internal surface of the metal body 10. This seal is produced by depositing a silicone in a pasty form which remains elastic over time.

On remplit ensuite la gorge 17 de résine époxy 23. The groove 17 is then filled with epoxy resin 23.

Grâce à cette réalisation, on assure une liaison étanche entre le bloc 1 et le corps métallique 10 dans toutes les conditions d'utilisation. Thanks to this embodiment, a tight connection is provided between the block 1 and the metal body 10 under all conditions of use.

Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit et représenté. Of course, the invention is not limited to the embodiment which has just been described and shown.

On pourra y apporter de nombreuses modifications de détail sans sortir pour cela du cadre de l'invention. Many detailed modifications can be made without departing from the scope of the invention.

Claims (3)

REVENDICATIONS 1. Perfectionnements aux supports de contacts de connecteurs électriques du type comprenant un corps métallique (10) avec un épaulement interne (12) et un bloc de matière isolante (1) comportant une saillie périphérique (14), ledit bloc (1) étant logé dans le corps métallique, sa saillie (14) portant, par une face, contre l'épaulement, tandis que l'autre face, du côté opposé à l'épaulement (12), forme avec la surface interne du corps métallique (10), une gorge (17), ledit bloc (1) étant percé d'une série de canaux (2) dans chacun desquels est fixé un organe de contact électrique (3), une résine époxy (20) étant coulée entre la saillie (14) et la surface interne correspondante du corps métallique (10) et remplissant la gorge (17), caractérisés en ce qu'un joint (22) est inséré dans le fond de la gorge (17). 1. Improvements to the contact supports of electrical connectors of the type comprising a metal body (10) with an internal shoulder (12) and a block of insulating material (1) comprising a peripheral projection (14), said block (1) being housed in the metallic body, its projection (14) bearing, on one side, against the shoulder, while the other side, on the side opposite the shoulder (12), forms with the internal surface of the metallic body (10) , a groove (17), said block (1) being pierced with a series of channels (2) in each of which is fixed an electrical contact member (3), an epoxy resin (20) being poured between the projection (14 ) and the corresponding internal surface of the metal body (10) and filling the groove (17), characterized in that a seal (22) is inserted in the bottom of the groove (17). 2. Perfectionnements aux supports de contacts de connecteurs électriques, selon la revendication 1, caractérisés en ce que le joint (22) est réalisé en silicone. 2. Improvements to the contact support of electrical connectors, according to claim 1, characterized in that the seal (22) is made of silicone. 3. Perfectionnements aux supports de contacts de connecteurs électriques, selon les revendications 1 et 2, caractérisés en ce que le joint (22) en silicone est déposé sous forme pâteuse dans le fond de la gorge (17) avant remplissage de celle-ci de résine époxy.  3. Improvements to the contact supports of electrical connectors, according to claims 1 and 2, characterized in that the silicone seal (22) is deposited in pasty form in the bottom of the groove (17) before filling it with epoxy resin.
FR9509204A 1995-07-28 1995-07-28 IMPROVEMENTS ON CONTACTS OF ELECTRICAL CONNECTORS Expired - Fee Related FR2737350B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9509204A FR2737350B1 (en) 1995-07-28 1995-07-28 IMPROVEMENTS ON CONTACTS OF ELECTRICAL CONNECTORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9509204A FR2737350B1 (en) 1995-07-28 1995-07-28 IMPROVEMENTS ON CONTACTS OF ELECTRICAL CONNECTORS

Publications (2)

Publication Number Publication Date
FR2737350A1 true FR2737350A1 (en) 1997-01-31
FR2737350B1 FR2737350B1 (en) 1997-09-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9509204A Expired - Fee Related FR2737350B1 (en) 1995-07-28 1995-07-28 IMPROVEMENTS ON CONTACTS OF ELECTRICAL CONNECTORS

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FR (1) FR2737350B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783105A1 (en) * 1998-09-03 2000-03-10 Positronic Ind Sealing method for electrical pin connector involves sealing seated connectors with resin
WO2008012506A1 (en) * 2006-07-26 2008-01-31 Otter Controls Limited Cordless electrical connector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170471A2 (en) * 1984-07-20 1986-02-05 Bowthorpe-Hellermann Limited Cable jointing
US4797122A (en) * 1987-04-08 1989-01-10 Daiichi Denshi Kogyo Kabushiki Kaisha Drip-proof connector
EP0420413A1 (en) * 1989-08-31 1991-04-03 The Whitaker Corporation Means and method of securing an insert in a shell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170471A2 (en) * 1984-07-20 1986-02-05 Bowthorpe-Hellermann Limited Cable jointing
US4797122A (en) * 1987-04-08 1989-01-10 Daiichi Denshi Kogyo Kabushiki Kaisha Drip-proof connector
EP0420413A1 (en) * 1989-08-31 1991-04-03 The Whitaker Corporation Means and method of securing an insert in a shell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2783105A1 (en) * 1998-09-03 2000-03-10 Positronic Ind Sealing method for electrical pin connector involves sealing seated connectors with resin
WO2008012506A1 (en) * 2006-07-26 2008-01-31 Otter Controls Limited Cordless electrical connector

Also Published As

Publication number Publication date
FR2737350B1 (en) 1997-09-12

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